F1953
DESCRIPTION
This document describes the specification for the F1953 Digital Step Attenuator. The F1953 is part of a family of Glitch-Free TM DSAs optimized for the demanding requirements of munications Infrastructure. These devices are offered in a pact 4 x 4 mm QFN package with 50Ω impedances for ease of integration.
PETITIVE ADVANTAGE
Digital step attenuators are used in Receivers and Transmitters to provide gain control. The F1953 is a 6-bit step attenuator optimized for these demanding applications. The silicon design has very low insertion loss and low distortion (> +60d Bm IP3I.) The device has pinpoint accuracy and settles to final attenuation value within 400ns. Most importantly, the F1953 includes Renesas’ Glitch-Free TM technology which results in less than 0.5d B of overshoot ringing during MSB transitions. This is in stark contrast to peting DSAs that glitch as much as 10d B.
- Lowest insertion loss for best SNR
- Glitch-Free TM when transitioning
- won’t damage PA or ADC
-...
